The Siemens SENTRON 3VA2216-5HL32-0KH0 is a 3-pole molded case circuit breaker rated for 160 A continuous current, built around the ETU320 electronic trip unit. It's a line-protection breaker — no ground-fault or phase-failure detection built in, just overcurrent and short-circuit protection with a shunt trip (STL) for remote opening. The breaking capacity hits 187 kA at 240 V and still delivers 121 kA at 415 V, so it handles high-fault utility feeds without cascading upstream.
Thermal derating and panel fit
At 40 °C, 45 °C, and 50 °C it holds the full 160 A without derating. At 55 °C you're at 154 A, at 60 °C down to 148 A, and at 70 °C it's 136 A — that last one matters if you're packing this into a sealed enclosure next to contactors or drives. The frame dimensions are 181 mm tall, 105 mm wide, and 86 mm deep; it bolts in on a standard MCCB footprint with the same hole pattern as the 3VA2 family. Wires up clean with the box lugs — strip, torque, done.